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【简答题】
The people below are all trying to choose which TV programme to watch.  After the description of these people, there is information about six TV programmes A-F. Decide which programme would be most suitable for the person mentioned in questions 1-5 and then mark the correct letter (A-F) on your answer sheet. There is one extra paragraph about one programme which you do not need to use. __________1.Although Rob lead a quiet life in a small village, that doesn’t stop him from wanting to find out about the latest scientific development. __________2.Bella enjoys eating out but can’t afford to spend very much at the moment as she is saving for a holiday. She has never learnt how to cook, so now might be quite a good time to find out! ____________3. Dan is interested in taking wildlife photographs and enjoys the kind of programme which gives him a chance to see a professional photographer at work. _____________4. Gina is a music teacher. Although she prefers  classical music, she likes to follow the kind of music that interests the teenagers she teaches. ____________5.Ron’s wife is in hospital. He wants to finds a programme suitable for his three-year-old son while he gets on with the housework and prepares a meal. TODAYS  TELEVISION  PROGRAMME  PREVIEW A.TV1 7:20 p.m. Find out more about Australia’s animal life. This film was made last year by one of Australia’s best-known cameramen, Dougie Bond. He spent over 200 hours filming the birds, animals and fish that inhabit this beautiful continent and for the first time brings some of these unusual animals to our TV screens. B.TV3 9:00p.m. The popular science programme is back with the latest in technology and medicine. This week, cars that run on sunlight and the story of one baby’s fight to live. C.TV2 8:10p.m. Do you think what goes into the food most of us eat every day of the week? Tonight’s programme takes a serious scientific look at the bread industry. Whether you bake your own bread or just enjoy buying it, this programme will give you an interesting insight into something most of us eat every day of the week. D.TV1 5:15p.m. Busy parents? Bored children? Do you want something educational to entertain your children while you do something else? This popular magazine programme is for the under-fives. More music, fun, songs and games with Carla and Larry. E.TV3  8:45p.m. If you’ve always wanted to cook, now’s your chance to learn. In the studio are two chefs who will take you through some simple recipes step by step. This is a repeat of the popular series shown last year, and available from good bookshops. F.TV3   7:40p.m. The latest new music. Pete Hogg looks at the best of the current rap, raga and new jack swing plus new video releases. This is the programme that tells you all about what’s happening on the music scene and brings you interviews with tomorrow’s young artists.
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【单选题】对于稳定的最小相位系统,幅值裕度一定是( )。
A.
大于1
B.
等于1
C.
大于零
D.
小于零
【简答题】在分析过程中的下列情况会造成何种误差? ( 1 )读取滴定管读数时,最后一位数值估测不准。
【单选题】食物中毒是指摄入了含有生物性、化学性有毒有害物质后所引起的()疾病。
A.
慢性
B.
急性或亚急性
C.
急性及慢性
D.
反复性
【判断题】摄入了含有生物性有害物质,引起了急性疾病属于食物中毒。
A.
正确
B.
错误
【单选题】最小相位系统的逆系统
A.
一定是因果系统
B.
一定是稳定系统
C.
一定是因果稳定系统
D.
一定有一个是最小相位系统
【单选题】食物中毒是指摄入了某些有毒食品而引起的特定疾病,具体指摄入了含有
A.
生物性、化学性有毒有害物质的食品,后出现的非传染性的急性、亚急性疾病
B.
物理性、化学性有毒有害物质的食品,后出现的非传染性的急性、亚急性疾病
C.
生物性、化学性有毒有害物质的食品,后出现的传染性的急性、亚急性疾病
D.
生物性、化学性有毒有害物质的食品,后出现的传染性、非传染性疾病
E.
生物性、物理性有毒有害物质的食品,后出现的非传染性的急性、亚急性疾病
【判断题】某最小相位系统的截止频率 ω c 小于相角交界频率 ω g 的话,那么这个系统闭环一定是不稳定的。
A.
正确
B.
错误
【单选题】最小相位系统与全通系统级联后的系统( )
A.
一定是最小相位系统
B.
一定是因果稳定系统
C.
幅度响应一定与原系统相同
D.
相位响应一定与原系统相同
【简答题】在分析过程中,读取滴定管读数时,最后一位数字n次读数不一致,对分析结果引起的误差属于_______误差。A. 操作
【简答题】图 示 电 路 中 A 、 B 两 端 间 的 等 效 电 阻 R AB 为 ( ) W 。
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